[Elecraft] K3/KPA500/KAT500 key interrupter w/W8ZR Station Pro 1?

[cx7tt at 4email.net]

Setting up the above config w/W8ZR Station Pro 1 and K2. The Station Pro
1 allows switching between two rigs whilst using one microphone/one
keyer/one set of speakers/headphones. It will also allow the use of the
KPA500 and KAT500 with either the K3 or K2.

Currently I have the K3 Line set up with Enhanced KPA500/KAT500
operation.  It works seamlessly.

Adding the K2 and W8ZR Station Pro 1 so I may have access to KPA500 and
KAT500; do I need to use the key line interruption in the circuit
between K3 key out and KAT500 PTT RLY as if a Steppir IR/W2 were in the
circuit?

Tips or suggestions?

Tnx y 73
Tom
HP1XT